# Author:Foru
# 1
def search4vowels(phrase:str) -> set:
    """Returns the set of vowels found in 'phrase'."""
    return set('aeiou').intersection(set(phrase))

def search4letters(phrase: str, letters: str='aeiou') -> set:
    """"Returns the set of 'letters' found in 'phrase'."""
    return set(letters).intersection(set(phrase))

# 可允许我们将模块变成一个可安装的发布包
from setuptools import setup

setup(
    name='vsearch',
    version='1.0',
    description='The Head First Python Search Tools',
    author='HF Python 2e',
    author_email='hfpy2e@gmail.com',
    url='headfirstlabs.com',
    py_modules=['vsearch'],
)